Finding the Fourth Proportional to 31,061.69, 42,865.18 and 16,914.59

Step by Step Solution

1. Step 1: Write the proportion equation
   31,061.69 : 42,865.18 = 16,914.59 : x
2. Step 2: Convert to fraction form
   31,061.69/42,865.18 = 16,914.59/x
3. Step 3: Cross multiply
   31,061.69x = 42,865.18 × 16,914.59
4. Step 4: Simplify right side
   31,061.69x = 725,046,688.36
5. Step 5: Solve for x
   x = 725,046,688.36/31,061.69
6. Step 6: Final answer
   x = 23,342.16